Porcellionidae
From Wikipedia, the free encyclopedia
Porcellionidae | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Scientific classification | ||||||||||||||
|
||||||||||||||
Genera | ||||||||||||||
|
Porcellionidae is a terrestrial family of the order Isopoda. The species classified here cannot roll into a ball, as opposed to the species of family Armadillidiidae, which can.
This family contains 530 species in 17 genera, found on every continent except Antarctica.
[edit] Identification
The ventral plate of the thoracic exoskeleton flare out slightly over the legs. This "flare" is called the epimeron. The uropods, antenna-like structures at the back of the specimen, are flattened out and spearlike, and extend beyond the last exoskeletal plate.